I think selling to Herschend or splitting off into its own park chain (with a few other parks) would be the only good options if KI had to be sold. Both would come with major changes to general operations and (in the case of Herschend) no more meal plans. That being said, Six Flags probably won't let it go easily.   Mid-America may have been chosen to be the flagship because Enchanted Parks might feel it is the most malleable in terms of making it their own. Worlds of Fun has an established theme throughout the park that works with its name while Mid-America will need to see some extensive reworking under its new management. They have an opportunity to make the theming more cohesive in each area while they work to replace all of the Six Flags branding and IPs that Enchanted Parks can't use. I believe that's also why the CEO is speaking so much on the investment slated for the park.

Looks like there's some sort of boom or reach truck right by the facade:

For my fellow KI webcam watchers, there is now a smattering of materials sitting near the castle facade! Some of these items could be for testing nearby rides, but I'm choosing to believe they're for Phantom Theater facade work.

Concerts at Timberwolf would bring in some additional revenue, but I think the venue as it currently exists is not very appealing to modern audiences. It lacks shade, the seats are old and uncomfortable, and the guest entrance experience simply looks and feels bad with concert goers walking through park service areas. I don't think it can easily compete with all of the venues in Cincinnati, even when you factor in all of the fearmongers who swear off going downtown. Carowinds Paladium at least has a roof over the front sections of seats and a direct connection to their front gate alongside more permanent dedicated concessions and restroom facilities.  It could work if Kings Island/Six Flags wanted to pour some money into vastly improving the venue, but I don't think we'll see anything long term without that. If they want to test out a new concert program they might want to start by having more events in the KI Theater. The entrance could go through the former Season Pass entrance tunnel and utilize the Front Gate restrooms (before the turnstiles) and/or the Invertigo restrooms.   As for KidzBop and Live Nation, the big concert venue at Darien Lake is a LN venue so they might have a way to start that relationship if they haven't already.

They’d also need to start doing upgrades. Any major artist would probably laugh at the condition of the facility and decline.